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14 January 2019 | Story Eugene Seegers | Photo Anja Aucamp
Study Bug Bites Historian Early
Prof Corene de Wet, South Campus researcher, is a dedicated historian and educator.

From a childhood dream of being a historian, to a decades-long educator and double doctorate-holder, Prof Corene de Wet has led an eventful life. Realising that her undergrad qualification on its own would not get her a job, she completed the Higher Diploma in Education at the then Potchefstroom University for Christian Higher Education. However, “just to buy some time for myself,” she decided to study part-time while teaching in Winburg.

Prof De Wet calls it “being bitten by the part-time study bug.” By 1991, she had obtained her BEd (an honours degree at the time), MEd, and DEd degrees. In 1999, she graduated with a PhD in History. Today, Prof De Wet is still a research associate on our South Campus.

Tremendous milestones and mentors

Dr Lynette Jacobs, co-researcher on several projects, says, “Prof De Wet was the first woman to receive a full professorship in the Faculty of Education, and the first woman in the faculty to obtain an NRF rating. She received her professorship at a time when the academic world belonged to men. She outclassed her peers, rising head and shoulders above the crowd.”

Prof De Wet says her superhero is Prof Daniella Coetzee, South Campus Principal and long-time colleague. “Prof Coetzee is a brilliant academic and organiser. She makes every member of her staff feel special. I am ever thankful that she saw the need for a researcher on the South Campus and that she appointed me in this position,” says Prof De Wet.

“She is a seasoned academic who
still enjoys international recognition.”
—Dr Lynette Jacobs.

Generational history and work ethic

Although much has changed in education since her initial research, Prof De Wet believes that both her doctoral dissertations still bear scrutiny. Regarding the zeitgeist and its impact on the written history of a nation, Prof De Wet says, “We regularly hear many voices today who say that history must be ‘rewritten’. My thesis dealt with exactly that: How different generations of historians wrote histories influenced by the spirit of the time, or by textbooks, or by their own political or world views, or their philosophy on life. Thus, different generations interpret the same events differently.”

During a career spanning more than four decades, Prof De Wet has upheld a strong work ethic. This has enabled her to maintain her C-rating as an NRF researcher. “If one doesn’t dare, if you are too afraid of critique or failure, you won’t get anywhere in academia,” she says, adding, “Criticism is part of academic life. Therefore, take chances, and learn from healthy, constructive criticism.”

News Archive

UFS physicists publish in prestigious Nature journal
2017-10-16

Description: Boyden Observatory gravitational wave event Tags: Boyden Observatory, gravitational wave event, Dr Brian van Soelen, Hélène Szegedi, multi-wavelength astronomy 
Hélène Szegedi and Dr Brian van Soelen are scientists in the
Department of Physics at the University of the Free State.

Photo: Charl Devenish

In August 2017, the Boyden Observatory in Bloemfontein played a major role in obtaining optical observations of one of the biggest discoveries ever made in astrophysics: the detection of an electromagnetic counterpart to a gravitational wave event.
 
An article reporting on this discovery will appear in the prestigious science journal, Nature, in October 2017. Co-authors of the article, Dr Brian van Soelen and Hélène Szegedi, are from the Department of Physics at the University of the Free State (UFS). Both Dr Van Soelen and Szegedi are researching multi-wavelength astronomy.
 
Discovery is the beginning of a new epoch in astronomy
 
Dr van Soelen said: “These observations and this discovery are the beginning of a new epoch in astronomy. We are now able to not only undertake multi-wavelength observations over the whole electromagnetic spectrum (radio up to gamma-rays) but have now been able to observe the same source in both electromagnetic and gravitational waves.”
 
Until recently it was only possible to observe the universe using light obtained from astronomical sources. This all changed in February 2016 when LIGO (Laser Interferometer Gravitational-Wave Observatory) stated that for the first time they had detected gravitational waves on 14 September 2015 from the merger of two black holes. Since then, LIGO has announced the detection of two more such mergers. A fourth was just reported (27 September 2017), which was the first detected by both LIGO and Virgo. However, despite the huge amount of energy released in these processes, none of this is detectable as radiation in any part of the electromagnetic spectrum. Since the first LIGO detection astronomers have been searching for possible electromagnetic counterparts to gravitational wave detections. 
 
Large international collaboration of astronomers rushed to observe source
 
On 17 August 2017 LIGO and Virgo detected the first ever gravitational waves resulting from the merger of two neutron stars. Neutron star mergers produce massive explosions called kilonovae which will produce a specific electromagnetic signature. After the detection of the gravitational wave, telescopes around the world started searching for the optical counterpart, and it was discovered to be located in an elliptical galaxy, NGC4993, 130 million light years away. A large international collaboration of astronomers, including Dr Van Soelen and Szegedi, rushed to observe this source.
 
At the Boyden Observatory, Dr Van Soelen and Szegedi used the Boyden 1.5-m optical telescope to observe the source in the early evening, from 18 to 21 August. The observations obtained at Boyden Observatory, combined with observations from telescopes in Chile and Hawaii, confirmed that this was the first-ever detection of an electromagnetic counterpart to a gravitational wave event. Combined with the detection of gamma-rays with the Fermi-LAT telescope, this also confirms that neutron star mergers are responsible for short gamma-ray bursts.  
 
The results from these optical observations are reported in A kilonova as the electromagnetic counterpart to a gravitational-wave source published in Nature in October 2017.
 
“Our paper is one of a few that will be submitted by different groups that will report on this discovery, including a large LIGO-Virgo paper summarising all observations. The main results from our paper were obtained through the New Technology Telescope, the GROND system, and the Pan-STARRS system. The Boyden observations helped to obtain extra observations during the first 72 hours which showed that the light of the source decreased much quicker than was expected for supernova, classifying this source as a kilonova,” Dr Van Soelen said.

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